package com.zhanghe.study.springcloudalibaba.dao;

import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;

/**
 * @author zh
 * @date 2021/9/15 15:08
 */
@Mapper
public interface AccountDao {
    void decrease(@Param("userId") int userId, @Param("money") double money);
}
